{"id":"CVE-2024-26150","aliases":["GHSA-2fc9-xpp8-2g9h"],"url":"https://o3.security/vulnerability/CVE-2024-26150","summary":"`@backstage/backend-common` vulnerable to path traversal through symlinks","details":"`@backstage/backend-common` is a common functionality library for backends for Backstage, an open platform for building developer portals. In `@backstage/backend-common` prior to versions 0.21.1, 0.20.2, and 0.19.10, paths checks with the `resolveSafeChildPath` utility were not exhaustive enough, leading to risk of path traversal vulnerabilities if symlinks can be injected by attackers. This issue is patched in `@backstage/backend-common` versions 0.21.1, 0.20.2, and 0.19.10.","published":"2024-02-23T15:46:35.731Z","modified":"2026-08-08T03:46:02.795478621Z","cvss":{"score":8.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@backstage/backend-common","fixedVersion":"0.21.1"},{"ecosystem":"npm","name":"@backstage/backend-common","fixedVersion":"0.19.10"},{"ecosystem":"npm","name":"@backstage/backend-common","fixedVersion":"0.20.2"}],"fix":{"url":"https://github.com/backstage/backstage/commit/1ad2b1b61ebb430051f7d804b0cc7ebfe7922b6f","label":"backstage/backstage@1ad2b1b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26150.json"},{"type":"ADVISORY","url":"https://github.com/backstage/backstage/security/advisories/GHSA-2fc9-xpp8-2g9h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26150"},{"type":"FIX","url":"https://github.com/backstage/backstage/commit/1ad2b1b61ebb430051f7d804b0cc7ebfe7922b6f"},{"type":"FIX","url":"https://github.com/backstage/backstage/commit/78f892b3a84d63de2ba167928f171154c447b717"},{"type":"FIX","url":"https://github.com/backstage/backstage/commit/edf65d7d31e027599c2415f597d085ee84807871"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:46:02.795478621Z"}}